Dartinto1

I already successfully replaced the lenses of two of my 4 cameras HIKVISION DS - 2CD2032 -I and I would like to share my experience with you. Before anything else I want to thank all the previous posts that made my life easier because when I opened my cameras I already knew what I will find. I also apologize for my bad English. I would like to mention that I do not intend in any way to encourage anyone to replace the lenses on these cameras, but only to contribute to a better knowledge of what is possible to do. In fact, if you have some practice to tinker with fine mechanics and electronics and some knowledge of optics, you can do it easily, but if you don’t have this knowledge you can make irreversible errors. I started my work by doing an exhaustive search of possible suppliers of lenses, especially in Europe, as import anything from outside the E.U. is much more expensive because of the fees involved. I found very good and not expensive lenses in stockoptics.com (UK) and ordered one of each of the following types: CCTV-BL-D/N-6-3MP-400-850nm CCTV-BL-D/N-8-3MP-400-850nm CCTV-BL-D/N-12-3MP-400-850nm These lenses are listed for 1/3” sensors but they really are 1 / 2.5" format. This means that we can use them on a 1/3 "sensor just with a slightly reduction of the angle view. The 1 / 2.5” format ensures that the lens introduces no dark corners in the image, and that the distortion is also lower because the lenses are using the most central part. These lenses are suitable for either CMOS or CCD sensors. They are Day/Night lenses, optimized for the peak transmission up to 850nm. The transmission still be good up to 1000nm and beyond. The dimensions are very similar to the original lens of HIKVISION which will help to not collide with the front glass of the camera. At the first camera (HIKVISION_3) I replaced the original lens of 4mm by a new one of 8mm. To do this I disassembled the camera and removed the lens holder which greatly aids the work of removing the two pieces of glue that are holding the lens. Before removing the lens holder do not forget to remove the filter drawer. To soften the glue pieces I used a cotton swab dipped in PVC cleaner, then removed them with a tweezers with fine tips. Never use solvents, as the support of the lens is plastic. Testing the product on a small area of the lens holder is a good option to verify that it does not spoil the plastic. In order to ensure that will not spoil the filter when you are searching for the focus, I advise that you screw the new lens to the level of the rear face of the lens holder before assembling again the block. So when looking later for the focus you just need to unscrew the lens. Just for reference I inform you that the focal point was obtained when the top of the lens is at the same level of the top of the IR LEDs. In the second camera (HIKVISION_2) I changed the original 4mm lens for a new one of 12mm by using the same method.

Those lenses are only Megapixel lenses, so I contacted M12 about this and just received the following information which can be useful for all of us : "These lenses are good upto 1.3MP. We do have a 3MP version, but not on the store yet. Hopefully, we can add them up by next week. They are suitable for Day/Night operation. I can get you the dimensions probably next week."

Thanks for magnificent photos and the instructions for opening the cameras. I have 4 cameras 2CD2032 DS-I, all of them with 4mm lenses, and would like to replace those lenses by new ones of 6mm or even 8mm (why not ?) or 12mm. I already knew that Hikvision did not provide substitution lenses, and I tried to buy from them the complete lens boards, but even that was impossible. However, stubborn as I am, I'm trying to find a manufacturer with compatible lenses. However I didn't open my cameras yet, so, I come to ask you if you can provide me the dimentions (diameter and height) and maybe other relevant data of the original lenses.